Pressure-regulator.



W. LEUOKERT.

PRESSURE REGULATOR.

APPLIUATION FILED NOV. 30, 1909.

Patented July 5, 1910.

, Il a THE NORRIS PETERS ca, WASHINGTON, nc.

UNITED STATES PATENT OFFICE.

WILLIAM LEUCKERT, OF NEW YORK, N. Y., ASSIGNOR 0F ONE-HALF TO CHARLES S.

' HOFFMAN, OF NEW YORK, N. Y.

PRESSURE-REGULATOR.

Specification of Letters Patent.

Patented July 5, 1910.

To all whom it may concern:

Be it known that I, WILLIAM LEUCKERT, a citizen of the United States of America, residing in New York, in the borough of Manhattan, county and State of New York, have invented certain new and useful Improvements in Pressure-Regulators, of which the following is a specification.

This invention relates to an improved pressure-regulator for tanks containing acetylene or other gas under pressure used on automobiles and other vehicles, so that a uniform supply of gas can be supplied to the burners of automobile or other lamps, whatever be the pressure of the gas in the tank; and the invention consists of a pressure-regulator comprising a cylindrical casing, a supply-nozzle for the acetylene or other gas in said casing, a pendent plate provided with an elastic block for opening or closing said nozzle, an elastic diaphragm in said casing, means for connecting the pendent late with said diaphragm, and a valved dlscharge-nipple for said casing for delivering the gas at uniform pressure to the lamps.

The invention consists further of certain details of construction which will be fully described hereinafter and finally pointed out in the claims.

In the accompanying drawing, Figure 1 represents a side-elevation, showing a tank containing acetylene or other gas under pressure with my improved pressure-regulator connected therewith, Fig. 2 is a vertical section on line 2, 2, Fig. 4, Fig. 3 is a horizontal section on line 3, 3, Fig. l, and Fig. 4 is a vertical transverse section on line 4, 4, Fig. 2.

Similar letters of reference indicate corresponding parts throughout the several views.

Referring to the drawing, 0 represents the cylindrical casing of my improved pressureregulator, which casing is provided with detachable heads 0 c that-are screwed by their internally-threaded circumferential flanges on the casing. A rubber gasket 0 is interposed between the casing 0 and head 0 while a diaphragm d, of conveXo-concave shape and of rubber or other elastic material, is interposed between the casing c and the opposite head 0 The head 0 is provided with a central nipple 0 into which is screwed a rimmed hollow screw-plug 0 which has a small arc-orifice 0 so as to establish atmospheric pressure in the space between the diaphragm d and the head 0 Between the elastic diaphragm d and the screw-plug c is interposed a helical spring 8, the tension of which is regulated by turning the screw-plug 0 in inward or outward direction, according to the pressure at which the acetylene or other gas is to be delivered to the automobile or other lamps. The spring 8 is held in position at one end by the plug o and at the other end by means of a pin al which is attached to the center of the elastic diaphragm d and which extends into the helical spring 8, but without touching the spring 8, as shown clearly in Figs. 2 and 3. The pin d is attached by washers 61", which are screwed on the shank of the pin, to the center of the diaphragm d, the inner end of the pin al being connected by pivot-links d with lugs e on the lower end of a pendent plate 6 which is hinged at its upper end to ears 6 on a cross-bar c that can be adjusted higher or lower by means of a setscrew 6 on a supply-pipe j which is screwed in the upper part of the casing c. The pipe f is connected by an interiorly threaded coupling-sleeve f with an eXteriorly-threaded nipple f on the outlet-pipe f of a tank t, which contains acetylene or other gas under pressure. The lower end of the supply-pipe f is provided with a bored-out laterally-extending nozzle 72. through which the gas escapes into the casing 0.

The orifice of the nozzle a is closed by a block Z) of soft rubber or other elastic material which is applied by its ends to slots in the pendent plate (2, the ends of said block being passed through said slots so as to be firmly held in position and conveniently removed and replaced from time to time. By adjusting the pendent plate 0 up or down on the supply-pipe f different points of the rubber block b may be brought to bear on the nozzle 71., thus prolonging the life of said block by distributing the wear thereon. The pendent plate e is preferably made of some light metal, such as aluminum, so as to move easily under the pressure of the gas escaping through the orifice of the nozzle n. The casing c is provided with a discharge-pipe 9 having a stopcock g and a threaded shank 9 which is screwed into a threaded hole of the casing c, as shown in Fig. 3. The discharge-pipe g is connected by a flexible pipe of the automobile or other vehicles:

My improved pressure regulatorfor-tanks containing acetylene or other gas under pres sure is operated as follows: When the-com munication between the tank and the presthrough the nozzle n into the casingand moves the pendent plate away fromthe dis charge-orifice of. the nozzle so astofill the 'interiorispaceof the casingwitli' acetylene or other gas at a reduced pressure. pendentplate' moves under the pressure of the gas'as' far as permitted by the elastic diaphragm' until the required pressure is established inthe casing, to: which the diaphragm The 'is adjuste'd'.v An increaseot pressure on the diaphragm will produce the contact of the elastic block with the orifice of'the' nozzle so as to interrupt the. further supply of: gas to the casing. As soon as the; pressure of the gas in the casingis" diminishedtrvby its supply to the lamps, the elastic-diaphragm,-under the influenee of the spring, moves the" block '1 ofthe pendent plate clear ofthe discharge OIl fiC G fQf the nozzle, so that-another supply of'gas'under'pressureiis delivered to the casing 0. The openingand closing of the nozz-1e bythe" p'layyof the diaphragm and the vibrating motion of thelpendent platefproduc'es' the alternating-admission and interruption of the gas-supply from the tank to the casing-,andkeeps up thereby the uni- 'form' supply offgasgto the burners of the lamps-lat" the pressure required; The pressureiegnlator supplies gasiot uniform ressure to the. burners independently o the pressure of the; gas in the supply-tank. 6, so that-auniform emission of light fromxthe lamps is kept up, 7 a the adjustment bythe diaphragm in the pressure regulator, the stop cock" can be slightly adjusted, which is" of special advantage when a tank with anew supplybf compressed acetylene gas is re-.

ce1ved. Then the initial: pressure of the" gas conducted tothe-lamps is somewhat reduced by turning thestopcock so as to diminish the pressure on theburners of'the' lamps. When the original pressure of the gas in the tank is250' lbs; and the pressure usediis tobe- 1'00 lbs.,;then.'the Springs is adjusted bythe screw plug soas t to just touch. the diaphragm. Whenone-halt or so of the gas in the tank is used up, thenthe spring 1s adjustedby a' few turns so-asto increase'the res'istance of the diaphragm tow the gas andrerstore the interior pressure to: 100 lbs. Wheneverthe chaufieur observes a dimin-uztion in thelight of the lamps, he gives-a turn or two to theuadjusting screw-plug, so that the gas-pressurein the casing is increased --and"properly kept up for giving the proper degree: 0t light. The spr ngisisupportedby the" pin on the diaphragm and the screwplug, but in such a manner that but little if i any friction is exerted'onthe pin and there- 7 by the sensitiveness of the diaphragm imsure rhegulator is established, the gasescapes paired};

Having thus. described my invention, I

a claim 'asnew and desire to secure by Letters Patent: v

1. A pressure-regnlator' for tankscontain ing 'gasiunder" pressure, comprising a cylindrical casing, an elastic diaphragm in said 'casing, a helical spring acting on one side ofsaid diaphragm, a ,supply pipe for the gasc'onnected with thetank containing gas under pressure, anozzle on said supply-pipe, a pendent plate provided with an elastic block forming contact with the dischargeorifice of said nozzle, means for adjusting C said rubber block up or down relative'tosaid nozzle, and means for connecting the lower end of the pendent plate-with the elastic diaphragm.

2. In a pressure-regulator, the combination of a cylindricalfcasing", an elastic diaphragm heldin positionin said casing, a helical spring acting on one side: of said iaphiragnn means for adjusting the tension of said spring, a supply-pipe' connected. with a tank containingthe gas under pressure, a nozzle at the end of said supply-pipe, a pendent plate hinged" adjacent tothe discharge-orifice ofysaiid nozzle and provided with an elastic blbck foropening or closing saidorifice, means for vertically adjusting said pendent plate on the supply-pipe, and means for yieldingly connecting theulower end of said pendent plate with the-centerof A the elastic diaphragm.

3'. In a pressure-regulator, the combination ofa cylindrical casing, an elastic diap'hragrnrin said casing, a'helical spring interposed between theelastic diaphragm and a screw-plug on the head of the casing,a

supply pipe,"means forsupplying gas under pressure,a' nozzie on the: inner end. of the gas-supply pipe, a' pendent plate hinged adacent to the nozzle and provided with a block for. opening or .clos ngj said nozzle,

means for' adjusting said pendent plate higher or lower on .the inner end of the supply-pipe, and means for'yieldingly connecting the lower-end of thependent plate with I the center of the diaphragm.

.In testimony, that I claimthe foregoing as myinvent'ion, Ihave signed iny name in presenceaoftwo subscribing witnesses.

. WILLIAM IJEUCKERT. Witnesses? PAUL GoEPEL, J. A. Cook. 

